In the embodiment shown in FIG. 2, the camera optic system includes a camera optic system lens 234 and a barrier that defines an aperture 235. The illumination optic system includes an illumination optic system lens 236. In alternative embodiments, however, a camera optic system and/or an illumination optic system may include other types of components either in place of or in addition to the components in the optic systems shown in FIG. 2. In general, a camera optic system may be any set of one or more components positioned in the field of view of a camera to modify one or more parameters regarding light received by the camera, such as the quantity of light received, the optical pathway along which light is received, the angular size of the field of view, the depth of field, the focus distance, and/or the wavelength(s) of light received. An illumination optic system may be any set of one or more components at least partially aligned with an illumination source to modify one or more parameters regarding light emitted by the illumination source. An optic system (either a camera optic system or an illumination optic system) may include any of various components such as lenses, filters, mirrors, apertures, etc.

FIG. 3 is a top-down, cross-sectional view illustrating some components of a mobile device 302 and some components of a shield portion 318 of a presentation stand 100 in accordance with another embodiment of the present disclosure. The embodiment shown in FIG. 3 is similar to the embodiment shown in FIGS. 2 and 2A, except as discussed below.